How many sides dose a centagon have?

What is a equivalent fraction for 13? 9 foot x 12 foot - how many square yards? 24 times 38? Why can't you have two parallel lines in a triangle? How do you multiply 2 negative numbers? How many inches is equal to one feet? How many gallons of gas purchased in California per day? How many half inch circles will fit in a 2 and a half inch circle? How many days were there in 2003? What year was it two centeries ago? A number divisible by 4 and 8 but not by 32? What can go into 5 and 10? What is the circumference if the distance from the center to the edge is 4.8 feet? How do you write 1.173 dollars in figures? How do I calculate the surface-area- to-volume ratio for a square or cube cell that is 3 mm each side? What times tables is 49 in? Average weight of a 4year old? What Numbers that round 56.85? What is the fraction of twelve and forty-five tenths? What is 150 percent as a fraction?